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Objective c 为什么自定义UITableViewCells可以在iOS 6中工作而不能在iOS 5中工作?_Objective C_Uitableview_Subclass_Reloaddata - Fatal编程技术网

Objective c 为什么自定义UITableViewCells可以在iOS 6中工作而不能在iOS 5中工作?

Objective c 为什么自定义UITableViewCells可以在iOS 6中工作而不能在iOS 5中工作?,objective-c,uitableview,subclass,reloaddata,Objective C,Uitableview,Subclass,Reloaddata,我在尝试在iPhone上使用表视图时遇到了很多麻烦。奇怪的是,它似乎在我的iOS模拟器上完全正常工作(即,我可以向数组添加一个条目,该条目显示在我的表视图中)。但是,当我在使用iOS设备时尝试添加条目时,代码在dequeueReusableCellWithIdentifier:行中断。我已检查大小写不一致、名称不一致,已在自定义UITableViewCell子类中重新实现了prepareforuse,并尝试使用IBV在我的UITableViewCell子类中定义字段。标签,也许还有其他一些东西,

我在尝试在iPhone上使用表视图时遇到了很多麻烦。奇怪的是,它似乎在我的iOS模拟器上完全正常工作(即,我可以向数组添加一个条目,该条目显示在我的表视图中)。但是,当我在使用iOS设备时尝试添加条目时,代码在
dequeueReusableCellWithIdentifier:
行中断。我已检查大小写不一致、名称不一致,已在自定义UITableViewCell子类中重新实现了
prepareforuse
,并尝试使用IBV在我的UITableViewCell子类中定义字段。标签,也许还有其他一些东西,但没有一个起作用

这个问题与我的上一个问题无关:

编程的难点在于总是知道该问哪个问题,所以如果我问错了问题,我道歉

更新6:问题是iOS 5上UITableViewCell的自定义布局

我使用UITableViewCell和自定义布局的UITableViewCell子类进行了测试。使用样式为UITableViewCellStyleDefault的UITableViewCell子类在iOS 5和iOS 6 iPhone模拟器上都能工作。但是,使用具有自定义样式的通用UITableViewCell会在iOS 5上崩溃,而在iOS 6上不会崩溃。有趣的是,我在UITableViewCell的文档中没有看到自定义UITableViewCellStyle的声明

更新5:iOS 5 v。6+自定义UITableViewCell子类?

您好:今天继续测试,似乎是iOS 5和iOS 6如何处理自定义UITableViewCell子类之间的问题。尚未找到解决方案:(

更新4:iOS 5与iOS 6?

因此,我所能注意到的是,这似乎是iOS 5与iOS 6的一个问题。当在iOS 6上使用line
GlassboxCell*cell=[tableView dequeueReusableCellWithIdentifier:CellIdentifier]
进行测试时,下面的代码不起作用。但是,这一行和
GlassboxCell*cell=[tableView dequeueReusableCellWithIdentifier:CellIdentifier forIndexPath:indexPath]
在iOS 5中工作。有什么想法吗?我通过将标识符更改为
protocell
,使它只工作了一次

更新3:我现在使用GitHub!

以下是相关回购协议:

更新2:更多观察结果

因此,我添加了
@synthetic tableView=\u tableView
,因为我在某个地方读到了一个可能有用的响应,但我现在意识到,即使在iOS模拟器上运行,它也会阻止我的数据加载到我的表视图中。注释掉这行代码后,代码返回到我上面描述的代码:它在iOS模拟器,但在第
dequeueReusableCellWithIdentifier:
行中断,没有指定错误,只是
Thread 1:breakpoint 1.1

更新1:相关代码

GlassboxTableViewController.h

//
//  GlassboxTableViewController.h
//  Glassbox
//
//  Created by Ken M. Haggerty on 10/22/12.
//  Copyright (c) 2012 Ken M. Haggerty. All rights reserved.
//

#pragma mark - // NOTES (Public) //

#pragma mark - // IMPORTS (Public) //

#import <UIKit/UIKit.h>

#pragma mark - // PROTOCOLS //

//@protocol GlassboxTableViewDatasource <NSObject>
//@property (nonatomic, weak) NSMutableArray *arrayOfPlayers;
//@end

#pragma mark - // DEFINITIONS (Public) //

@interface GlassboxTableViewController : UITableViewController
@property (nonatomic, strong) NSMutableArray *arrayOfPlayers;
- (IBAction)addPlayer:(UIBarButtonItem *)sender;
//@property (nonatomic, strong) id <GlassboxTableViewDatasource> datasource;
@end
//
//GlassboxTableViewController.h
//玻璃盒
//
//由Ken M.Haggerty于2012年10月22日创作。
//版权所有(c)2012 Ken M.Haggerty。保留所有权利。
//
#pragma标记-//注释(公共)//
#pragma标记-//导入(公共)//
#进口
#pragma标记-//协议//
//@协议GlassboxTableViewDatasource
//@属性(非原子,弱)NSMutableArray*arrayOfPlayers;
//@结束
#pragma标记-//定义(公共)//
@界面GlassboxTableViewController:UITableViewController
@属性(非原子,强)NSMUTABLEARRY*arrayOfPlayers;
-(iAction)addPlayer:(UIBarButtonItem*)发送方;
//@属性(非原子,强)id数据源;
@结束
GlassboxTableViewController.m

//
//  GlassboxTableViewController.m
//  Glassbox
//
//  Created by Ken M. Haggerty on 10/22/12.
//  Copyright (c) 2012 Ken M. Haggerty. All rights reserved.
//

#pragma mark - // NOTES (Private) //

#pragma mark - // IMPORTS (Private) //

#import "GlassboxTableViewController.h"
#import "GlassboxCell.h"
#import "Player.h"
#import <MobileCoreServices/MobileCoreServices.h>

#pragma mark - // DEFINITIONS (Private) //

#define SIDEBAR_WIDTH_PERCENT 0.75

@interface GlassboxTableViewController () <UITableViewDataSource, UITableViewDelegate, UIImagePickerControllerDelegate, UINavigationControllerDelegate>
//@property (nonatomic, weak) IBOutlet UITableView *tableView;
- (void)setup;
@end

@implementation GlassboxTableViewController

#pragma mark - // SETTERS AND GETTERS //

@synthesize arrayOfPlayers = _arrayOfPlayers;
@synthesize tableView = _tableView;
//@synthesize datasource = _datasource;

- (void)setArrayOfPlayers:(NSMutableArray *)arrayOfPlayers
{
    _arrayOfPlayers = arrayOfPlayers;
}

- (NSMutableArray *)arrayOfPlayers
{
    if (!_arrayOfPlayers) _arrayOfPlayers = [[NSMutableArray alloc] init];
//    [_arrayOfPlayers addObject:[[Player alloc] initWithUsername:@"Ken H.:"]];
    return _arrayOfPlayers;
}

#pragma mark - // INITS AND LOADS //

- (void)setup
{
    self.tableView.dataSource = self;
    self.tableView.delegate = self;
}

- (id)initWithStyle:(UITableViewStyle)style
{
    NSLog(@"[initWithStyle]");
    self = [super initWithStyle:style];
    if (self) {
        [self setup];
    }
    return self;
}

- (void)viewDidLoad
{
    NSLog(@"[viewDidLoad]");
    [super viewDidLoad];
    [self setup];

    // Uncomment the following line to preserve selection between presentations.
    // self.clearsSelectionOnViewWillAppear = NO;

    // Uncomment the following line to display an Edit button in the navigation bar for this view controller.
    // self.navigationItem.rightBarButtonItem = self.editButtonItem;
}

//- (void)viewDidAppear:(BOOL)animated
//{
//    [super viewDidAppear:animated];
//    [self.view setFrame:CGRectMake(self.view.frame.origin.x, self.view.frame.origin.y, self.view.frame.size.width*SIDEBAR_WIDTH_PERCENT, self.view.frame.size.height)];
//}

- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

#pragma mark - // PUBLIC FUNCTIONS //

- (IBAction)addPlayer:(UIBarButtonItem *)sender
{
    [self alertAddPlayer];
}

#pragma mark - // PRIVATE FUNCTIONS //

- (void)alertAddPlayer
{
    UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Add New Player" message:@"Please type player name:" delegate:self cancelButtonTitle:@"Cancel" otherButtonTitles:@"OK",nil];
    alert.alertViewStyle = UIAlertViewStylePlainTextInput;
    alert.tag = 1;
    [alert show];
}

- (void)alertInvalidPlayer
{
    UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Invalid Name" message:@"Please type another name:" delegate:self cancelButtonTitle:@"Cancel" otherButtonTitles:@"OK",nil];
    alert.alertViewStyle = UIAlertViewStylePlainTextInput;
    alert.tag = 1;
    [alert show];
}

- (void)alertAddPhoto
{
    NSLog(@"[TEST] alertAddPhoto");
    if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera])
    {
        NSArray *mediaTypes = [UIImagePickerController availableMediaTypesForSourceType:UIImagePickerControllerSourceTypeCamera];
        if ([mediaTypes containsObject:(NSString *)kUTTypeImage])
        {
            UIImagePickerController *imagePickerController = [[UIImagePickerController alloc] init];
            imagePickerController.delegate = self;
            imagePickerController.sourceType = UIImagePickerControllerSourceTypeCamera;
            imagePickerController.allowsEditing = YES;
//            imagePickerController.cameraDevice = UIImagePickerControllerCameraDeviceFront;
//            imagePickerController.cameraCaptureMode = UIImagePickerControllerCameraCaptureModePhoto;
            imagePickerController.mediaTypes = [NSArray arrayWithObject:(NSString *)kUTTypeImage];
//            [self presentViewController:imagePickerController animated:YES completion:nil];
        imagePickerController.cameraDevice = UIImagePickerControllerCameraDeviceFront;
            [self presentModalViewController:imagePickerController animated:YES];
            return;
        }
    }
    NSLog(@"[TEST] No camera available");
    [self.tableView reloadData];
}

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
    UIImage *image = [info objectForKey:UIImagePickerControllerEditedImage];
    if (!image) image = [info objectForKey:UIImagePickerControllerOriginalImage];
    if (image)
    {
        [[self.arrayOfPlayers lastObject] setPhoto:[[UIImageView alloc] initWithImage:image]];
    }
    [self dismissImagePicker];
}

- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker
{
    [self dismissImagePicker];
}

- (void)dismissImagePicker
{
//    [self dismissViewControllerAnimated:YES completion:^{
//        [self.tableView reloadData];
//    }];
    [self dismissModalViewControllerAnimated:YES];
    [self.tableView reloadData];
}

- (void)alertView:(UIAlertView *)alertView didDismissWithButtonIndex:(NSInteger)buttonIndex
{
    if (buttonIndex == 0) NSLog(@"Cancel tapped");
    else
    {
        if (alertView.tag == 1)
        {
            if (buttonIndex == 1)
            {
                if ([[[alertView textFieldAtIndex:0] text] length] != 0)
                {
                    [self.arrayOfPlayers addObject:[[Player alloc] initWithUsername:[[alertView textFieldAtIndex:0] text]]];
                    [self alertAddPhoto];
                }
                else [self alertInvalidPlayer];
            }
        }
    }
}

#pragma mark - // PRIVATE FUNCTIONS (Miscellaneous) //

// TableView data source //

//- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
//{
//#warning Potentially incomplete method implementation.
//    // Return the number of sections.
//    return 0;
//}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
//    return self.datasource.arrayOfPlayers.count;
    return self.arrayOfPlayers.count;
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    static NSString *CellIdentifier = @"New Cell";
//    GlassboxCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier forIndexPath:indexPath];
    GlassboxCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];

    cell.name.text = [[self.arrayOfPlayers objectAtIndex:indexPath.row] username];
    cell.action.text = @"LOADED SUCCESSFULLY";
    cell.time.text = @"Just now";
    cell.photo = [[self.arrayOfPlayers objectAtIndex:indexPath.row] photo];

//    [((UILabel *)[cell viewWithTag:1]) setText:[[self.arrayOfPlayers objectAtIndex:indexPath.row] username]];
//    [((UILabel *)[cell viewWithTag:2]) setText:@"has been added."];
//    [((UILabel *)[cell viewWithTag:3]) setText:@"Just now"];
//    [((UIImageView *)[cell viewWithTag:4]) setImage:[[[self.arrayOfPlayers objectAtIndex:indexPath.row] photo] image]];

    [cell.contentView setFrame:CGRectMake(cell.contentView.frame.origin.x, cell.contentView.frame.origin.y, cell.contentView.frame.size.width, 120)];

    return cell;
}

/*
// Override to support conditional editing of the table view.
- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath
{
    // Return NO if you do not want the specified item to be editable.
    return YES;
}
*/

/*
// Override to support editing the table view.
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath
{
    if (editingStyle == UITableViewCellEditingStyleDelete) {
        // Delete the row from the data source
        [tableView deleteRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationFade];
    }   
    else if (editingStyle == UITableViewCellEditingStyleInsert) {
        // Create a new instance of the appropriate class, insert it into the array, and add a new row to the table view
    }   
}
*/

/*
// Override to support rearranging the table view.
- (void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)fromIndexPath toIndexPath:(NSIndexPath *)toIndexPath
{
}
*/

/*
// Override to support conditional rearranging of the table view.
- (BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath
{
    // Return NO if you do not want the item to be re-orderable.
    return YES;
}
*/

// TableView delegate //

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
    // Navigation logic may go here. Create and push another view controller.
    /*
     <#DetailViewController#> *detailViewController = [[<#DetailViewController#> alloc] initWithNibName:@"<#Nib name#>" bundle:nil];
     // ...
     // Pass the selected object to the new view controller.
     [self.navigationController pushViewController:detailViewController animated:YES];
     */
}

@end
//
//GlassboxTableViewController.m
//玻璃盒
//
//由Ken M.Haggerty于2012年10月22日创作。
//版权所有(c)2012 Ken M.Haggerty。保留所有权利。
//
#pragma标记-//注释(专用)//
#pragma标记-//导入(专用)//
#导入“GlassboxTableViewController.h”
#导入“GlassboxCell.h”
#导入“Player.h”
#进口
#pragma标记-//定义(专用)//
#定义侧边栏宽度百分比0.75
@界面GlassboxTableViewController()
//@属性(非原子,弱)IBUITableView*tableView;
-(无效)设置;
@结束
@GlassboxTableViewController的实现
#pragma标记-//setter和getter//
@合成arrayOfPlayers=_arrayOfPlayers;
@综合tableView=\u tableView;
//@综合数据源=_数据源;
-(void)SetArrayOffLayers:(NSMutableArray*)ArrayOffLayers
{
_ArrayOffLayers=ArrayOffLayers;
}
-(NSMutableArray*)arrayOfPlayers
{
如果(!\u ArrayOfLayers)\u ArrayOfLayers=[[NSMutableArray alloc]init];
//[_arrayofplayersaddobject:[[Player alloc]initWithUsername:@“Ken H.:”];
返回_arrayOfPlayers;
}
#pragma标记-//初始化和加载//
-(无效)设置
{
self.tableView.dataSource=self;
self.tableView.delegate=self;
}
-(id)initWithStyle:(UITableViewStyle)样式
{
NSLog(@“[initWithStyle]”);
self=[super initWithStyle:style];
如果(自我){
[自我设置];
}
回归自我;
}
-(无效)viewDidLoad
{
NSLog(@“[viewDidLoad]”);
[超级视图下载];
[自我设置];
//取消对下一行的注释以保留演示文稿之间的选择。
//self.clearselectiononviewwillappear=否;
//取消对以下行的注释,以在此视图控制器的导航栏中显示编辑按钮。
//self.navigationItem.rightBarButtonItem=self.editButtonItem;
}
//-(无效)视图显示:(BOOL)动画
//{
//[超级视图显示:动画];
//[self.view setFrame:CGRectMake(self.view.frame.origin.x,self.view.frame.origin.y,self.view.frame.size.width*边栏_width_PERCENT,self.view.frame.size.height)];
//}
-(无效)未收到记忆警告
{
[超级记忆警告];
//处置所有可以重新创建的资源。
}
#pragma mark-//公共函数//
-(iAction)addPlayer:(用户界面
// use dequeueReusableCellWithIdentifier for init cell
if (cell == nil){
    cell = [[[GlassboxCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:yourIdentifier]] autorelease];
}
//rest your code for init properties for cell
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    static NSString *CellIdentifier = @"NewCell";
    GlassboxCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];

    if (cell == nil)
    {
        cell = [[GlassboxCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];

    }

    cell.name.text = [[self.arrayOfPlayers objectAtIndex:indexPath.row] username];
    cell.action.text = @"LOADED SUCCESSFULLY";
    cell.time.text = @"Just now";
    cell.photo = [[self.arrayOfPlayers objectAtIndex:indexPath.row] photo];

    [cell.contentView setFrame:CGRectMake(cell.contentView.frame.origin.x, cell.contentView.frame.origin.y, cell.contentView.frame.size.width, 120)];

    return cell;
}
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier forIndexPath:indexPath];